Well, in my region, the vast majority of buyers don't even know what root is, so it's never been an issue for me. I don't expect that to change anytime soon. The Note 3 doesn't show any issues at all when reflashed unless Knox flag is tripped. Even then, the only "issue" is the warranty bit flag shown in Download mode and the loss of Knox container, which almost nobody uses. Out of a 100 buyers, you might find one that knows what root is and less than that who know how to get to Download mode, and even fewer who'd potentially use Knox, so no, not a problem.
coz I have only media transfer and camera protocol only
I am unable to access many files and folders starting with a . in their name